Tire advice
Logistics Pro
Joined: Nov 2010
Posts: 4,654
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From: Tewksbury, MA
I will bet the Web Site has an error. I am thinking the max cold is 80. Check the side wall though. Toyo own's Nitto, and the trail grappler is a basic design of the Toyo MT. I am sure there are more differences than no siping but the weight's and all are almost the same.
if it says its higher I'm assuming its probably a better ride than 55 up front and 65 in the rear.
Posting Guru
Joined: Sep 2009
Posts: 2,015
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From: Lakehills, TX
Contact Nitto and ask. It may be that it's just in that tire size that inflation pressures are different, because they claim that tire has an extremely high load index at 65 psi, almost 3500 pounds.
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Freshman User
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Anyone heard anything about Cooper M+S?
Posting Guru
Joined: Sep 2009
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From: Lakehills, TX
PS I would've demanded to speak to the general manager and express my outrage that they sold you a truck that their tech said was unsafe--reckless, even--to be driving, especially when they were supposed to have inspected the truck for safety, and demand they fix it by installing new tires like whatever comes OEM.
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Freshman User
Joined: Sep 2010
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Can you please post a picture of the tire sidewall where it says "5 PLY"?
PS I would've demanded to speak to the general manager and express my outrage that they sold you a truck that their tech said was unsafe--reckless, even--to be driving, especially when they were supposed to have inspected the truck for safety, and demand they fix it by installing new tires like whatever comes OEM.
PS I would've demanded to speak to the general manager and express my outrage that they sold you a truck that their tech said was unsafe--reckless, even--to be driving, especially when they were supposed to have inspected the truck for safety, and demand they fix it by installing new tires like whatever comes OEM.
Posting Guru
Joined: Sep 2009
Posts: 2,015
Likes: 4
From: Lakehills, TX
That's what I'm really aiming to help you understand: there's no such thing as 5 ply or 10 ply.
Rugged Trail T/A tires are actually OEM selections on some Super Duties (or have been in the past at least), and are available with a Load Index up to 121, which is 3,200 pounds per tire, which more than exceeds any SRW GVWR. See the specs: Rugged Trail T/A | BFGoodrich Tires
Rugged Trail T/A tires are actually OEM selections on some Super Duties (or have been in the past at least), and are available with a Load Index up to 121, which is 3,200 pounds per tire, which more than exceeds any SRW GVWR. See the specs: Rugged Trail T/A | BFGoodrich Tires
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Freshman User
Joined: Sep 2010
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That's what I'm really aiming to help you understand: there's no such thing as 5 ply or 10 ply.
Rugged Trail T/A tires are actually OEM selections on some Super Duties (or have been in the past at least), and are available with a Load Index up to 121, which is 3,200 pounds per tire, which more than exceeds any SRW GVWR. See the specs: Rugged Trail T/A | BFGoodrich Tires
Rugged Trail T/A tires are actually OEM selections on some Super Duties (or have been in the past at least), and are available with a Load Index up to 121, which is 3,200 pounds per tire, which more than exceeds any SRW GVWR. See the specs: Rugged Trail T/A | BFGoodrich Tires
I don't know much about tires so maybe my thinking is wrong?
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Cargo Master
Joined: Jun 2011
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From: Cincy area
I got the 295 70 18 Trail Grapplers and the air pressure rating is 80 and over 4k for weight capacity on the sidewall. The aftermarket wheels don't hold near that much though I believe 3,600#?. I keep the pressure at what helps the tire wear the best = evenly. 75 front and 70 rear unloaded. When the towing/hauling 75 front and rear. 80 seemed to make the centers wear quickly. I know one thing, they are tough. When I load down heavy the tires never bulge even a little.
Posting Guru
Joined: Sep 2009
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From: Lakehills, TX
Very possibly, yes. They make different sizes and specs for those tires, but we still have no idea what you have on your truck.
PLEASE go out and look at your tire. Write down or take a picture of what's printed on the sidewall, where it says the exact size with the speed rating (a single letter such as a "Q") and load index (a number such as "116" or whatever). Then come post it here.
PS The load ratings and inflation pressures on the sidewall are the maximums at which the tire can be safely used, not necessarily what the "right" choice is for you to have at any given time. For inflation, if you have stock tires, go by the sticker on your door jamb and only adjust from there if there's a problem.
PLEASE go out and look at your tire. Write down or take a picture of what's printed on the sidewall, where it says the exact size with the speed rating (a single letter such as a "Q") and load index (a number such as "116" or whatever). Then come post it here.
PS The load ratings and inflation pressures on the sidewall are the maximums at which the tire can be safely used, not necessarily what the "right" choice is for you to have at any given time. For inflation, if you have stock tires, go by the sticker on your door jamb and only adjust from there if there's a problem.
Super Moderator
Joined: Aug 2003
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From: Isanti, MN
That doesn't seem odd to me at all. Larger tires have a wide tread surface to apply the pressure to. Large tires always have lower pressures even if they are the same load range. The huge meats used on those heavy monster trucks only run between 12-20 PSI.
Logistics Pro
Joined: Nov 2010
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From: Tewksbury, MA
wanted to make sure my tires were airs up right lol.
Super Moderator
Joined: Aug 2003
Posts: 25,479
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From: Isanti, MN
Testing the Grave Digger Monster Truck
The little bitty tires on my small trailer have to be at 90 PSI for the axle to support 2,000 lbs, but the tires on my F150 only need 35 PSI to support double that weight. Most temporary spare tires for cars(AKA "donuts) require 60 PSI when their normal-size counterparts only require 28-33 PSI.
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